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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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#16397 08/30/2002 2:22 AM | Joined: Aug 2002 Posts: 6 Member | | Member Joined: Aug 2002 Posts: 6 | Quick Refresher. What is the difference between an intergral (sp) and non intergral head on a 250 (out of a 67 - 72 ? Casting number3994257)?
Can anyone identify what this engine id is from - F0708TPW
F - Flint
07 - July
08 - Day of month
TPW - ??????
Thanks in advance,
Kurt
48 3100 5 window w/250ci
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#16398 08/30/2002 3:18 AM | Joined: Jun 2000 Posts: 2,773 'Bolter | | 'Bolter Joined: Jun 2000 Posts: 2,773 | Integral head has the intake manifold cast with the head. Your block casting number 3994257 shows as a 67-72 250. Info from Butlers Motors
Fred
52 3600
69 C-10
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#16400 08/30/2002 9:10 PM | Joined: May 2000 Posts: 234 Shop Shark | | Shop Shark Joined: May 2000 Posts: 234 | The difference? Enough horsepower to matter! Keep that non-integral head and get some nice headers...  -Boyo
'48 Willys CJ-2A / '55.1 Chevy 3600 / '66 Austin-Healey 3000 / '04 Volvo wagon (parenthood!?)
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